... control.0.5hz/150%(SVC),PID control,Traverse control,RS485 communication,standard modbus AC Converter (1)Control mode: Sensorless ... automatically when input voltage is fluctuating.(7)Offer RS485 communication interface.(8)Standard Modbus(9)Output freqency range:0~ ... .0Hz* Reference Frequency Source: Keypad, analog input, serial communication, multi-step speed, PID and so on. The combination of multi- ...